Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
sang minh » kang minah, anh minh, song min
minh hong » minh cong, min hong, linh hoang
yang yao » yang yang, wang yan, yang yi
hua west » a west, hua wei, out west
ost west » east west
hong hai » shang hai, zhong tai, dang hai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: dong yang yao ((hua west) or (ost west)) sang minh hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang yao ((hua west) OR (ost west)) sang minh hong hai ;.
• Adding a wildcard symbol may retrieve word variants: dong yang yao ((hua west) or (ost west)) sang minh hong hai ;*.